Two Double Bonds Between Ring Members Of The Five-membered Hetero Ring Patents (Class 548/560)
Nitrogen attached indirectly to the five-membered hetero ring by acyclic nonionic bonding (Class 548/561)
Chalcogen attached indirectly to the five-membered hetero ring by acyclic nonionic bonding (Class 548/562)
Benzene ring bonded directly to ring nitrogen of the five -membered hetero ring (Class 548/563)
The five-membered hetero ring is unsubstituted or alkyl substituted only (e.g., pyrrole, etc.) (Class 548/564)
  • Process for the preparation of vinylcyclopropane derivatives
    Patent number: 4328168
    Abstract: This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yield. For the process an alkylating agent and activated methylene compound are reacted in the presence of a cyclic polyether compound and alkali metal compound. Water can also be present and/or the reaction may be carried out in an inert organic diluent.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: May 4, 1982
    Assignee: Emery Industries, Inc.
    Inventor: Richard G. Fayter, Jr.
  • Process for the preparation of vinylcyclopropane derivatives
    Patent number: 4328169
    Abstract: This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yield. For the process an alkylating agent and activated methylene compound are reacted in the presence of an alkylene oxide derivative and alkali metal compound. Water can also be present and/or the reaction may be carried out in an inert organic diluent.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: May 4, 1982
    Assignee: Emery Industries, Inc.
    Inventor: Allen L. Hall